"' N
0:: loo
rl I.O
"' N
"' rl
-For safety reasons, you should always park
your vehicle with the selector lever in P. Oth
erwise, the vehicle could inadvertently roll
away .
- The rad iator fan can continue to run for up
to 10 m inutes even after you have turned
off the engine and removed the ignition key .
The rad iator fan can also turn on aga in if the
engine coolant heats up be cause of intense
s u nlight or heat bui ld-up in the engine com
partment.
- Always ta ke t he key with you wheneve r you
leave your vehicle. Otherwise, the eng ine
cou ld be started or electrical eq uipment
s u ch as the power windows cou ld be operat
ed. This can lead to serious injury.
(D Note
If the e ng ine has been under heavy load for
an extended per iod, heat builds up in the en
gine compartment after the engine is swi tch
ed off -there is a risk of damag ing the engine.
Allow the engine to run at idle for about two
m inutes before switch ing it off.
Driver messages
Ignitio n is on
This message appears and a war ning tone sounds
if you open the driver's door when the ignition is
switched on.
No ke y ide ntifi ed
This message appears when the
I STAR T ENGIN E STOP I button is pressed if t here
i s no master key inside the vehicle o r if the sys
tem does not recogni ze it. For example, the mas
ter key ca nnot be recognized if it is covered by an
object (e .g . alum inum br ie f case) which
screens
the radio signal. Electronic devices such as cell
phones can also interfere w ith the rad io signa l.
Press br ake pedal to sta rt engine
This message appears if you do not press the
b rake peda l to s tart the engine.
Shift to N or P to start engine
Dr ivi ng
This message appears when attempt ing to start
t h e engine if the se lector lever for the automatic
transmission is not in the P or N position. The en
gine can on ly be started w ith the selector in
these positions.
El I s the key in the vehicle?
T his mess age appears if the mas ter key is re
moved from the vehicle wi th the e ngine runn ing .
If the master key is no longer in the ve hicle, you
cannot switch on the ignition after stopping the
engine and you also cannot start the engine
again . Moreover, you cannot lock the vehicle from
t h e outside with the key.
Shift to P otherwise vehicle can roll away . Door s
do not lo ck
if le ve r is not in P.
This message appears for safety reasons along
with a warning signal. It appea rs if the selector
lever for the automatic transmission is not in the
P position when switch ing off the ignition. Move
the selector lever to the P position, otherwise the
vehicle is not secured against rolling away. You
also cannot lock the vehicle us ing the locking
button* on the door handle o r us ing t he remote
key .
Convenience key defe cti ve! Use ign ition lock
This message appears if the engine must be
started or stopped using the ign ition key and not
the
I STAR T ENGINE ST OP ! button.
Electromechanical
parking brake
Operation
The electromechanical parking broke replaces
the hand broke.
Fig . 79 Center co nso le: Pa rk in g b ra ke
75
Driving
"'Pu ll on the switch @ ¢fig. 79 to apply the
parking brake . The indicator lights in the switch
and . (USA models)/ . (Canada mode ls) in
the inst ru ment cluste r il lum inate.
"' With the ign ition switched on, step on the
brake pedal or the accelerator pedal and press
the switch @ at the same t ime to release the
parking b rake . The indicator lights in the switch
and . (USA models)/ . (Canada mode ls) in
the instr ument cluster go o ut.
Your veh icle is equipped w ith an electromechan i
cal parking b rake. The par king b rake is designed
to p revent the veh icle from rolling unintentional
ly and replaces the hand brake.
In addition to the norma l funct ions of a tradit ion
a l hand bra ke, the e lectromechan ical pa rking
b rake provides var ious convenience and safety
f u nctions.
When start ing f rom rest
- The integral starting assist helps you when
driv ing by automat ically releasing the parking
brake ¢
page 76, Starting from rest.
-When sta rting on inclines , the starting assist
prevents the vehicle from un intent ionally roll
ing back. The bra kin g for ce of the par kin g b rake
is no t released until sufficien t driv ing fo rce has
been built up at the wheels .
Emergency brake function
An emergency brake ensures that the vehicle ca n
be slowed down even if the
normal brakes fa il
¢ page 77, Emergency braking.
A WARNING
If a drive range is eng age d with the vehicle
stationary and the engine running, you mus t
in no instance accelerate careless ly . Otherwise
the vehicle will start to move immed iate ly
r isk of an accident.
(D Tips
- If the parking brake is applied with the igni
tion switched off, the indicator lights in the
switch and -(USA models) . (Cana
da models) in t he instrument cl uster will go
out after a certa in period of time.
76
- Occasional noises when the pa rking brake is
applied an d released a re norma l and are not
a cause for concern .
- Whe n the vehicle is pa rked, the park ing
brake goes through a self-test cycle at regu
lar intervals. Any associated noises are nor
ma l.
Parking
"'Press the brake pedal to stop the veh icle .
"' Pull the sw itch @¢
page 75, fig. 79 to set the
parking brake .
"' Move the se lector lever to P.
"' Tur n the engine off ¢_& .
"' When on inclines or de clines, turn the steering
wheel so that the veh icle will roll into the curb
if it begins to move.
A WARNING
-
- When you leave your vehicle -even if only
briefly - always remove the ignition key. This
applies pa rticularly when children remain in
the vehicle . Otherwise the ch ild ren could
start t he engine, release the parking b rake
or operate elect rical equipment (e.g. power
w indows). There is the risk of an acc ident.
- When the veh icle is locked, no one -part icu
larly no t chi ld ren shou ld remain in the ve hi
cle. Lo cked doors m ake it more d ifficul t for
emergency workers to get into the veh icle -
putting lives at risk.
Starting from rest
The star ting assist function ensures that the
parking brake is released automatically upon
starting .
Stopping and applying parking brake
"' Pull the sw itch @¢ page 75, fig. 79 to apply
the par kin g b rake.
Starting and automatically releasing the
parking brake
"' When you sta rt to dr ive as usual, the park ing
bra ke is automatically released and yo ur vehicle
beg ins to move. .,_
When stopping at a traffic signal or stopp ing in
city traffic on vehicles with an automatic trans miss ion, the park ing brake can be applied . The
vehicle does not have to be held with the foot brake. The parking brak e eliminates the tendency
to creep with a drive range engaged . As soon as
you dr ive off as usual , the parking brake is re
leased automatically and the veh icle starts to
move.
Starting on sl opes
When starting on inclines, the start ing ass ist pre
vents the vehicle from unintentionally rolling back. The braking force of the parking brake is
not released until sufficient driv ing force has
been b uilt up at the whee ls .
@ Tips
For safety reasons, the park ing brake is re
leased automatically only when the dr iver's
safety belt is engaged in the buckle.
Emergency braking
In the event that the conventional brake system
fails or locks.
.,. In an emergency, pull the switch @c::, page 75 ,
fig. 79
and continue to pull it to slow your vehi
cle down with the park ing brake.
.,. As soon as you release t he sw itch @ or acceler-
ate, the braking process stops.
I f you pull the sw itch @and ho ld it above a
speed of about
5 mph (8 k m/ h), the emergen cy
b rak ing func tion is initia ted . The vehicle is braked
at all four wheels by activa ting the hydrau lic
b rake system. The brake pe rformance is s imilar
to making an emergency stop
c::, A .
In o rder no t to activate the emergency bra king by
mista ke, an audible warning tone (b uzzer)
sounds when the sw itch @ is pulled. As soon as
the switch @ is released, or t he accelerator peda l
is depressed, emergency braking stops.
~ &_ WARNING
0::
~ Emergency braking should only be used in an ......
~ emergency, when the normal foot brake has
N
"' ......
Dri ving
failed or the bra ke peda l is obstructed. Us ing
the parking brake to perform emergency brak i ng will slow your vehicle down as if you had
made a full brake application. The laws of
physics cannot be suspended even with ESC
and its assoc iated components (ABS, ASR,
E DS). In corners and when road o r weather
conditions are bad, a f ull bra ke applica tion
can cause the ve hicl e to skid o r th e rear end to
break away -risking an ac cident.
Speed warning system
Overview
The speed warning system helps you to keep your
driving speed below a set speed limit.
T he speed warning system warns if the driver ex
ceeds a previous ly stored maximum speed . A
warning tone will sound as soon as the veh icle
speed exceeds the set speed by about 3 mph
(3 km/h) . At the same t ime, a warning symbol
appears in the display . The symbol's appearance
mig ht be different in some models .
The speed warn ing system has two warning
t hr esholds that funct ion independent ly of each
othe r and t hat have somewhat d ifferent pu rpos
es:
Speed wa rning 1
You can use speed warning 1 to set the maximum
speed wh ile you are driving. Th is sett ing will re
main in effect until you turn off the ign ition, as
suming that you have not changed or reset th e
setting.
The . (USA models)/ . (Canada models)
speed warning symbo l in the warn ing 1 disp lay
appears when you exceed the maximum speed .
It
goes out when the spe ed falls be low the stored
ma ximum speed.
The speed warn ing symbol will also go out if the
speed
exceeds the stored maximum speed by
more than about
25 mph (40 km/h) for at least
10 seco nds. The stored maxim um speed is dele t-
ed.
~
77
M N
0:: loo ,...., \!) ,.,.,
N ,.,., ,....,
• Pull the lever to position CD¢ fig. 81 to switch
the system on.
• Drive at the speed to be contro lled .
• Press button ® to set that speed.
The stored speed and the green symbol
[ij;(i )~i4 (US model)/ Bl (Canadian model) are
shown in the display r::>fig . 82. The disp lay may
vary, depending on the type of display in your ve
h icle .
The speed is kept constant by modify ing engine
power or thro ugh an active brake intervention.
A WARNING
- Always pay attention to the traffic around
yo u when the cruise control is in operation .
You are always responsib le for your speed
and the dista nce between yo ur vehicle and
other vehicles .
- For reasons of safety, cruise cont ro l should
not be us ed in the city, in stop-and-go t raf
fic, on twisting roads and w hen road condi
tio ns are poor (such as i ce, fog, gr avel,
heavy rain and hyd rop laning) - r is k of acci
dent.
- T urn off t he cr uise control temporari ly w hen
en ter ing turn lanes, highway exit lanes or in
constr uction zones .
- P lease note tha t inadvertent ly " rest ing"
yo ur foot on the accelerator peda l causes
the cruise control not to brake. This is be
cause the cruise contro l is overridden by the
dr iver's acceleration .
- If a brake system malfunction such as ove r
heating occurs when the cruise control sys
tem is switched on, the braking function in
the system may be sw itched off. The other
cruise control func tions remain act ive as
lo ng as the indicato r light
[ij;(l)~i4 (US mo d
els)/ . (Canadian mode ls) is on.
(D} Tips
The brake lights illuminate as soon as the
bra kes apply automat ica lly.
Dri ving
Changing speed
• To inc rease/decrease the speed in in cr ements,
t ap t he leve r in the
010 direction¢ page 78,
fig. 81.
• To increase/decrease the speed quic kly, hold
the lever in the
0 10 di rect ion until the de
sired speed is displayed.
You can also press the accelerator pedal down to increase yo ur speed, e.g . if yo u want to pass
someone . The speed you saved ear lie r will re
s u me as soon as you let off of the accelerator
pedal.
If, however , you exceed yo ur saved speed by
6 mph (10 km/h) for longer than 5 minutes, the
cruise control will be turned off temporarily . The
green symbo l in the d isplay turns white. The
saved speed rema ins the same .
Presetting your speed
You can preset your desired speed while the vehi
cle is not moving.
• Switch on the ignition.
• Pull lever into position CD r::> page 78, fig. 81.
• Press the lever in the
0 or O direction to in-
crease or decrease your speed.
• Release the lever to save that speed .
This function makes it possible, for examp le, to
save the speed you want before dr iv ing o n the
highway. Once on the highway, activate the cru ise
control by pu lli ng the lev er toward CD-
Switching off
Temporary deactivation
• Press the brake pedal, or
• Press the leve r into position @ (not clicked into
p lace) ¢page 78, fig. 81, or
• Dr ive fo r longe r th an
5 m inu tes a t mo re t han
6 mph ( 10 km/h) above the store d spee d.
Switching off completely
• Press lever into position @(clicked into place),
or
• Swi tch the ignit ion off.
79
Driving
The speed yo u saved wi ll be retained if the cruise
control has been switched off temporari ly . To re
sume the saved speed, let up on the brake and pull the lever to pos ition
(D .
Switching the ignition off erases the saved speed.
A WARNING
You should on ly return to the saved speed if it
is not too fast for the current traffic condi
tions -risk of an accident!
80
M N
0:: loo ,...., \!) 1.1"1
N 1.1"1 ,....,
Automatic transmission
S tronic
Introduction
The automatic transmission is controlled elec
tronically. The transmission upshifts or down
shifts automatically depending on which drive
program is selected.
When a
moderate driving style is used, the
transmission selects the most economical driving
mode.
It will then change up early and delay the
downshifts to give better fuel economy.
The transmission switches to a sporty mode after
a kick-down or when the driver uses a
sporty driv
ing style
characterized by quick accelerator pedal
movements, heavy acceleration, frequent
changes in speed and traveling at the maximum
speed.
If desired, the driver can also select the gears
manually (tiptronic mode) ~ page 85.
The S tronic is a dual-clutch transmission . Power
is transferred using two clutches that work inde
pendently from one another. They replace the
torque converter used in conventional automatic
transmissions and allow the vehicle to accelerate
without a noticeable interruption in traction.
Selector lever positions
Fig. 83 Display in the instru ment cluster: selector lever in
pos it ion P
The selector lever position engaged appears next
to the selector lever as well as in the instrument
cluster display .
Automatic transmission
P - Park
In this selector lever position the transmission is
mechanically locked. Engage P only when the ve
hicle is
completely stopped¢.& in Driving the
automatic transmission on page 83.
To shift in or out of position P, you must first
press and hold the brake pedal and then press
the release button in the selector lever handle
while moving the selector lever to or from P. You
can shift out of this position only with the igni
tion on.
R- Reverse
Select R only when the vehicle is at a full stop
and the engine is running at idle speed¢.& in
Driving the automatic transmission on
page 83.
Before you move the selector lever to R, press
both the release button in the hand le of the se
lector lever
and the brake pedal at the same
time .
When the ignition is on, the backup lights illumi
nate when the selector lever is moved into R.
N - Neutral
The transmission is in neutral in this position.
Shift to this position for standing with the brakes
applied
~ .& in Driving the automatic transmis
sion on page 83.
When the vehicle is stationary or at speeds below
1 mph (2 km/h), you must always apply the foot
brake before and while moving the lever out of N.
D/S - Normal position for driving forward
In the D/S position, the transmission can be oper
ated either in the normal mode Dor in the sport
mode S. To select the sport mode S, pull these
lector lever back briefly. Pulling the lever back
again will select the normal mode D. The instru
ment cluster display shows the selected driving
mode.
In the
normal mode D, the transmission auto
matically selects the suitable gear ratio. It de
pends on engine load , vehicle speed and driving
style.
11o-
81
Automati c tra nsmi ssio n
Select the spo rt m ode S for sporty driving. The
vehicle makes full use of the engine's power.
Shift ing may become not iceable when accelerat
ing.
When the vehicle is stationary or at speeds below 1 mph (2 km/h), you must always apply the foot
brake before and while moving the lever to D/S
out of N.
_&. WARNING
Read and follow all WARNINGS¢.& in Driv
ing the automatic transmission on
page 83 .
(D Note
Coasting downh ill with the transmission in N
and the engine not running will result in dam
age to the automatic transmission and possi
bly the catalytic converter .
(D) Tips
-On vehicles with drive select*, you can ad
just the sporty shift characteristics in the
Dy namic driv ing mode.Swi ll appear in the
i nstrument cluster display instead of D .
- If you accidentally select N while driving, take your foot off the accelerator pedal im
mediately and wait for the engine to slow
down to idle before selecting D/S.
- If there is a power failure, the se lector lever
will not move out of the P pos it ion. The
emergency release can be used if this hap
pens¢page 87.
82
.
Automatic Shift Lock (ASL)
The Automatic Shift Lock safeguards you against
accidentally shifting into a forward or the re
verse gear and causing the vehicle to move unin
tentionally.
Fig . 84 Sh ift gate : se lecto r lever lock pos itio ns and re lease
button h ig h lighted
The selector lever lock is released as fol lows:
.,. Turn the ignition on .
.,. Step on the brake pedal.
At the same time
press and hold the release button on the s ide of
the gear selector knobq
fig. 84 with your
thumb until you have moved the sele ctor lever
to the desired position.
Automatic selector leve r loc k
The selector lever is locked in the P and N pos i
tions when the ignit ion is turned on . You must
press the brake peda l and the release button to
select another posit ion. As a reminder to the
drive r, the following warni ng appears in the in
str ument cluster display when the se lector is in P
and
N:
When sta ti onar y appl y brak e peda l wh ile select
ing g ear
The Automatic Shift Lock only funct ions when the
vehicle is stat iona ry or at speeds below 1 mph
(2 km/h).
At speeds above about 1 mph (2 km/h) the Auto
matic Shift Lock is automat ica lly deactivated in
the N pos ition.
A time delay element prevents the selector lever
from locking when it is moved through the N po
s ition (going from R to D/S) . The locking e lement
will lock the selector leve r if the lever is left in N .,..
"' N
0:: loo
rl I.O
"'
(Neutral) for more than approximately 2 seconds,
without the brake pedal being pressed.
Release button
The release button on the selector lever prevents
the lever from being accidentally shifted into cer
tain positions. Depending on the direction of the
shift, the selector lever locks at different posi
tions . The positions are highlighted in the i llus
tration ¢
fig. 84.
Ignition key safety interlock
The key cannot be removed from the ignition un
l ess the selecto r lever is in the P park position .
When the ignition key is removed, the selector
lever will be locked in the P position.
Driving the automatic transmission
M N 0 0 .,:.
gi
Fig. 85 Shift gate on the center conso le: selector lever with
release butto n
Starting the engine
.,. The selector lever must be in P or N.
Starting off
.,. Press and hold the brake pedal.
.,. Press and ho ld the release button in the se lec
tor lever handle, select the desired selector lev
er position such as D/S and release the button.
.,. Wait briefly until the transmission has shifted
(you will feel a slight movement).
.,. Remove your foot from the brake pedal and ac
celerate.
Stopping temporarily
.,. Keep the vehicle stationary using the braking
pedal, for example at traffic lights.
.,. Do not press the accele rator pedal when doing
~ t hi s. rl
Automatic transmission
.,. To prevent the vehicle from rolling when you
start driving, set the parking brake when stop
ping on steep inclines¢ &_.
.,. The parking brake wi ll release automatica lly
and the vehicle will start moving once you press
the acce lerator pedal.
Stopping /parking
If the selector lever is not in the P position when
you open the driver's door, the vehicle could ro ll.
The message
Transmission: Car may roll! Shift
to park!
appears.
.,. Press and hold the brake peda l until the vehicle
has come to a complete stop.
.. App ly the parking brake¢
page 76.
.,. Select the P selector lever posit ion ¢ &_ .
Stopping on an incline
.,. Always press the brake pedal to hold the vehi
cle in p lace and prevent it from "ro lling back"
¢ &_ . Do
not try to prevent the veh icle from
"rolling back" when a gear is engaged by in
creasing the engine speed ¢(D .
Starting on an incline
.,. Activate the parking brake .
.,. With the driving gear selected, press the acce l
erator pedal carefu lly. The parking brake will re
lease automatically if your seat belt is fastened.
Und er certain circumstances, such as driving in
the mountains, it may be useful to switch tempo rarily to the manual shift program in order to ad
just the gears to the driving conditions by hand
¢page 85 .
On s lopes, activate the parking brake first and
then move the selector lever to the P position.
This prevents too much stress from being placed on the locking mechanism .
_& WARNING
-
-The vehicle can also roll when the engine is
stopped.
- Unintended vehicle movement can cause se
rious injury.
- Never leave your vehicle with the engine
running while in gear. If you must leave your
~
83